Patent · US Active

Electrical machine

US9252642B2 · kind B2 · utility

11Cited by

11References

17Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Klaus Büttner · Hollstadt, DE
Vladimir Danov · Erlangen, DE
Olaf Rehme · Hamburg, DE
Martin Schäfer · Arnstadt, DE

Key dates

Filing date	Oct 22, 2010
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Oct 26, 2030

Classification

Technology area (CPC H)Electricity
CPC primaryH02K9/225
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to an electric machine (100) comprising a stator (107) and a rotor (101), wherein the rotor (101) comprises a hollow shaft (102), wherein a closed hollow space (103) is formed by means of the hollow shaft (102), wherein the closed hollow space (103) is provided for receiving a cooling agent, wherein a three-dimensional transport structure (200) is provided in the closed hollow chamber (103) for transporting the cooling agent. The three-dimensional structure can, for example, be produced by means of applying an adaptive material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.